Chains and heterogens:
PDB Chain Sequences:
>1f1yA (A:) msneipkpvapapdilrcayaelvvtdlaksrnfyvdvlglhvsyedenqiylrsfeefi hhnlvltkgpvaalkamafrvrtpedvdkaeayyqelgcrterrkdgfvkgigdalrved plgfpyefffetthverlhmrydlysagelvrldhfnqvtpdvprgrkyledlgfrvted iqddegttyaawmhrkgtvhdtaltggngprlhhvafsthekhniiqicdkmgalrisdr iergpgrhgvsnafylyildpdnhrieiytqdyytgdpdnptitwnvhdnqrrdwwgnpv vpswyteaskvldldgnvqeiiertddselevtigadgfsftragdedgsyhgqaskgfk lgnql
>1f1yA (A:) eipkpvapapdilrcayaelvvtdlaksrnfyvdvlglhvsyedenqiylrsfeefihhn lvltkgpvaalkamafrvrtpedvdkaeayyqelgcrterrkdgfvkgigdalrvedplg fpyefffetthverlhmrydlysagelvrldhfnqvtpdvprgrkyledlgfrvtediqd degttyaawmhrkgtvhdtaltggngprlhhvafsthekhniiqicdkmgalrisdrier gpgrhgvsnafylyildpdnhrieiytqdyytgdpdnptitwnvhdnqrrdwwgnpvvps wyteaskvldldgnvqeiiertddselevtigadgfsftragdedgsyhgqaskgf
>1f1yB (B:) msneipkpvapapdilrcayaelvvtdlaksrnfyvdvlglhvsyedenqiylrsfeefi hhnlvltkgpvaalkamafrvrtpedvdkaeayyqelgcrterrkdgfvkgigdalrved plgfpyefffetthverlhmrydlysagelvrldhfnqvtpdvprgrkyledlgfrvted iqddegttyaawmhrkgtvhdtaltggngprlhhvafsthekhniiqicdkmgalrisdr iergpgrhgvsnafylyildpdnhrieiytqdyytgdpdnptitwnvhdnqrrdwwgnpv vpswyteaskvldldgnvqeiiertddselevtigadgfsftragdedgsyhgqaskgfk lgnql
>1f1yB (B:) eipkpvapapdilrcayaelvvtdlaksrnfyvdvlglhvsyedenqiylrsfeefihhn lvltkgpvaalkamafrvrtpedvdkaeayyqelgcrterrkdgfvkgigdalrvedplg fpyefffetthverlhmrydlysagelvrldhfnqvtpdvprgrkyledlgfrvtediqd degttyaawmhrkgtvhdtaltggngprlhhvafsthekhniiqicdkmgalrisdrier gpgrhgvsnafylyildpdnhrieiytqdyytgdpdnptitwnvhdnqrrdwwgnpvvps wyteaskvldldgnvqeiiertddselevtigadgfsftragdedgsyhgqaskgf